Ark-0
Ark-0 is a test network for trying things out. It may be reset at any time.

Block 25552

Hash
00000009f9a495cdf6490636e563680e37132783334d49a8c15c104d0981c15a
Confirmations
16762
Time
2026-10-17 13:43:33 UTC
Median time
2026-10-17 13:35:41 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
b17525c4db6f1d6b4def158c0ea4a7b6dcea4ebdcb873d39ad28ad964c34384e
Previous block
000001533290585b8c05b641aa50ebaf6a20f417d043ed4b2b392d8233fce8a6
Next block
000000e262f70b3de514e889212e787b384df31ec77f572d557c49314856ed76

ML-DSA-44 block signature (M2)

M2 is an experimental rule of this test network. From a height set in its build, a node that enforces M2 accepts a block only if, besides the classical signet signature, the block carries a valid ML-DSA-44 signature by the Ark-0 block key, in its coinbase's witness commitment output. This page shows that signature; it does not check it.

Block 25552 is at or above the activation height 20000: nodes that enforce M2 accept a block there only with a valid ML-DSA-44 block signature.

The node behind this site enforces M2 and holds this block, so its block signature passed the node's check.

Status
In the form M2 requires, followed by the signet solution push (the classical signature)
Signature
82a0a51f37c3f69e9ab7e31ae9f9a6f7… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
b17525c4db6f…ad964c34384e coinbase1250